A five day period. According to the U.S. Centers for Disease Control, if you test positive for COVID, you should be isolated for at least a week before returning to normal life. Families, human resource departments, schools, and other institutions across the country depend on the advice of the CDC for determining how to return to normal life after a COVID infections.

The five-day quark policy has been questioned by scientists. Critics of the policy have more data to back them up.

Scientists found that people were infectious after five days. A report from the Massachusetts General Hospital in Boston shows that 25% of COVID patients may still be infectious after eight days.

How long should you isolate after testing positive for COVID?

Extending the period from five to ten days could be a safer option.

According to Amy Barczak, a physician at the Massachusetts General Hospital Infectious Disease Division who contributed research to the study, there isn't any data to support a shorter isolation period.

The CDC's five-day rule should be used instead of the scientists' suggestion that people stop quarantining once they test negative.

"If you're positive, you shouldn't go out and interact with people who you don't want, and if you're negative, you shouldn't go out and interact with people who you don't want, either."

Joe Biden is waiting to test negative for COVID

As more Americans rely on the CDC's guidance to decide when it's safe to return to work, school, or other activities, the evidence poking holes in the policy arrives.

The rise of the Omicron BA.5 sub-variant has led to the rapid spread of COVID in the U.S. The US has reported 128,000 cases in the past week. The real number could be higher with testing nearing all-time lows. Wastewater tests show record high levels of the virus in the US.

The President of the United States, Joe Biden, is one of the Americans who caught Covid.

The CDC's five-day rule isn't enough for Biden, who is currently working from home and recovering from an illness. According to the White House, Biden would wait until he tests negative before coming back to see people. Biden expects to resume in-person meetings by the end of the week, after testing positive for a second time last week.